Telephonic communications – Audio message storage – retrieval – or synthesis – Multilingual system or operation
Patent
1996-08-23
1998-12-22
Hunter, Daniel S.
Telephonic communications
Audio message storage, retrieval, or synthesis
Multilingual system or operation
379 9302, 379 9303, 379 9304, 379188, 379199, 379142, H04M 166, H04M 157
Patent
active
058526536
ABSTRACT:
A device and method for securing terminal equipment connected to a communications line is disclosed. The device, when inserted into the communications line between the caller and terminal equipment, places an air gap in the communications line physically preventing unauthorized callers from accessing the equipment. The device employs an authentication line separate from the communications path that is used to authenticate the caller wishing to use the terminal equipment. The caller must first call the authentication line where the information regarding the source of the caller is retrieved and stored. Once the caller's source is identified, the device answers the line and requires that the caller enter an authentication code. If a proper authentication code is entered, the device disconnects the authentication line and waits a predetermined amount of time for a call on the communications line. When a call is received during the predetermined period on the communications line, the source information of the caller is retrieved and compared to the information stored from the authentication call. If the information matches, the air gap is closed allowing the caller to access the terminal equipment. A line activity detector monitors the communications line and causes the air gap to be reopened when the caller disconnects from the terminal equipment.
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Clayton William Lawrence
Horton Larry Earl
Knecht Louis Bernard
Pavlik Thomas John
Reel John Steven
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